Molecular Assembly-Induced Charge Transfer for Programmable Functionalities
Name
acs.chemmater.7b04357.pdf
Description
Accepted version
Size
5.22 MB
Format
Adobe PDF
Checksum (MD5)
683228a141e5b4069a129d865c0a9154
Author(s)
Zhang, Zhuolei
Li, Huashan
Luo, Zhipu
Chang, Shuquan
Li, Zheng
Guan, Mengmeng
Zhou, Ziyao
Liu, Ming
Grossman, Jeffrey C
Ren, Shenqiang
Date Issued
2017
Journal
Chemistry of Materials
Publisher
American Chemical Society (ACS)
Version
Author's final manuscript
Abstract
© 2017 American Chemical Society. The donor-acceptor interface within molecular charge transfer (CT) solids plays a vital role in the hybridization of molecular orbitals to determine their carrier transport and electronic delocalization. In this study, we demonstrate molecular assembly-driven bilayer and crystalline solids, consisting of electron donor dibenzotetrathiafulvalene (DBTTF) and acceptor C60, in which interfacial engineering-induced CT degree control is a key parameter for tuning its optical, electronic, and magnetic performance. Compared to the DBTTF/C60 bilayer structure, the DBTTFC60 cocrystalline solids show a stronger degree of charge transfer for broad CT absorption and a large dielectric constant. In addition, the DBTTFC60 cocrystals exhibit distinct CT arrangement-driven anisotropic electron mobility and spin characteristics, which further enables the development of high-penetration and high-energy γ-ray photodetectors. The results presented in this paper provide a basis for the design and control of molecular charge transfer solids, which facilitates the integration of such materials into molecular electronics.
MIT Department
Massachusetts Institute of Technology. Department of Materials Science and Engineering
Terms of Use
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DOI of Published Version
https://doi.org/10.1021/ACS.CHEMMATER.7B04357
